release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-orion5x/lsmini-setup.c

   1 /*
   2  * arch/arm/mach-orion5x/lsmini-setup.c
   3  *
   4  * Maintainer: Alexey Kopytko <alexey@kopytko.ru>
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/mtd/physmap.h>
  15 #include <linux/mv643xx_eth.h>
  16 #include <linux/leds.h>
  17 #include <linux/gpio_keys.h>
  18 #include <linux/input.h>
  19 #include <linux/i2c.h>
  20 #include <linux/ata_platform.h>
  21 #include <linux/gpio.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/system.h>
  25 #include <mach/orion5x.h>
  26 #include "common.h"
  27 #include "mpp.h"
  28
  29 /*****************************************************************************
  30  * Linkstation Mini Info
  31  ****************************************************************************/
  32
  33 /*
  34  * 256K NOR flash Device bus boot chip select
  35  */
  36
  37 #define LSMINI_NOR_BOOT_BASE    0xf4000000
  38 #define LSMINI_NOR_BOOT_SIZE    SZ_256K
  39
  40 /*****************************************************************************
  41  * 256KB NOR Flash on BOOT Device
  42  ****************************************************************************/
  43
  44 static struct physmap_flash_data lsmini_nor_flash_data = {
  45         .width          = 1,
  46 };
  47
  48 static struct resource lsmini_nor_flash_resource = {
  49         .flags  = IORESOURCE_MEM,
  50         .start  = LSMINI_NOR_BOOT_BASE,
  51         .end    = LSMINI_NOR_BOOT_BASE + LSMINI_NOR_BOOT_SIZE - 1,
  52 };
  53
  54 static struct platform_device lsmini_nor_flash = {
  55         .name                   = "physmap-flash",
  56         .id                     = 0,
  57         .dev            = {
  58                 .platform_data  = &lsmini_nor_flash_data,
  59         },
  60         .num_resources          = 1,
  61         .resource               = &lsmini_nor_flash_resource,
  62 };
  63
  64 /*****************************************************************************
  65  * Ethernet
  66  ****************************************************************************/
  67
  68 static struct mv643xx_eth_platform_data lsmini_eth_data = {
  69         .phy_addr       = 8,
  70 };
  71
  72 /*****************************************************************************
  73  * RTC 5C372a on I2C bus
  74  ****************************************************************************/
  75
  76 static struct i2c_board_info __initdata lsmini_i2c_rtc = {
  77         I2C_BOARD_INFO("rs5c372a", 0x32),
  78 };
  79
  80 /*****************************************************************************
  81  * LEDs attached to GPIO
  82  ****************************************************************************/
  83
  84 #define LSMINI_GPIO_LED_ALARM   2
  85 #define LSMINI_GPIO_LED_INFO    3
  86 #define LSMINI_GPIO_LED_FUNC    9
  87 #define LSMINI_GPIO_LED_PWR     14
  88
  89 static struct gpio_led lsmini_led_pins[] = {
  90         {
  91                 .name      = "alarm:red",
  92                 .gpio      = LSMINI_GPIO_LED_ALARM,
  93                 .active_low     = 1,
  94         }, {
  95                 .name      = "info:amber",
  96                 .gpio      = LSMINI_GPIO_LED_INFO,
  97                 .active_low     = 1,
  98         }, {
  99                 .name      = "func:blue:top",
 100                 .gpio      = LSMINI_GPIO_LED_FUNC,
 101                 .active_low     = 1,
 102         }, {
 103                 .name      = "power:blue:bottom",
 104                 .gpio      = LSMINI_GPIO_LED_PWR,
 105         },
 106 };
 107
 108 static struct gpio_led_platform_data lsmini_led_data = {
 109         .leds      = lsmini_led_pins,
 110         .num_leds       = ARRAY_SIZE(lsmini_led_pins),
 111 };
 112
 113 static struct platform_device lsmini_leds = {
 114         .name   = "leds-gpio",
 115         .id     = -1,
 116         .dev    = {
 117                 .platform_data  = &lsmini_led_data,
 118         },
 119 };
 120
 121 /****************************************************************************
 122  * GPIO Attached Keys
 123  ****************************************************************************/
 124
 125 #define LSMINI_GPIO_KEY_FUNC       15
 126 #define LSMINI_GPIO_KEY_POWER      18
 127 #define LSMINI_GPIO_KEY_AUTOPOWER 17
 128
 129 #define LSMINI_SW_POWER         0x00
 130 #define LSMINI_SW_AUTOPOWER     0x01
 131
 132 static struct gpio_keys_button lsmini_buttons[] = {
 133         {
 134                 .code      = KEY_OPTION,
 135                 .gpio      = LSMINI_GPIO_KEY_FUNC,
 136                 .desc      = "Function Button",
 137                 .active_low     = 1,
 138         }, {
 139                 .type           = EV_SW,
 140                 .code      = LSMINI_SW_POWER,
 141                 .gpio      = LSMINI_GPIO_KEY_POWER,
 142                 .desc      = "Power-on Switch",
 143                 .active_low     = 1,
 144         }, {
 145                 .type           = EV_SW,
 146                 .code      = LSMINI_SW_AUTOPOWER,
 147                 .gpio      = LSMINI_GPIO_KEY_AUTOPOWER,
 148                 .desc      = "Power-auto Switch",
 149                 .active_low     = 1,
 150         },
 151 };
 152
 153 static struct gpio_keys_platform_data lsmini_button_data = {
 154         .buttons        = lsmini_buttons,
 155         .nbuttons       = ARRAY_SIZE(lsmini_buttons),
 156 };
 157
 158 static struct platform_device lsmini_button_device = {
 159         .name      = "gpio-keys",
 160         .id          = -1,
 161         .num_resources  = 0,
 162         .dev        = {
 163                 .platform_data  = &lsmini_button_data,
 164         },
 165 };
 166
 167
 168 /*****************************************************************************
 169  * SATA
 170  ****************************************************************************/
 171 static struct mv_sata_platform_data lsmini_sata_data = {
 172         .n_ports        = 2,
 173 };
 174
 175
 176 /*****************************************************************************
 177  * Linkstation Mini specific power off method: reboot
 178  ****************************************************************************/
 179 /*
 180  * On the Linkstation Mini, the shutdown process is following:
 181  * - Userland monitors key events until the power switch goes to off position
 182  * - The board reboots
 183  * - U-boot starts and goes into an idle mode waiting for the user
 184  *   to move the switch to ON position
 185  */
 186
 187 static void lsmini_power_off(void)
 188 {
 189         arm_machine_restart('h', NULL);
 190 }
 191
 192
 193 /*****************************************************************************
 194  * General Setup
 195  ****************************************************************************/
 196
 197 #define LSMINI_GPIO_USB_POWER   16
 198 #define LSMINI_GPIO_AUTO_POWER  17
 199 #define LSMINI_GPIO_POWER       18
 200
 201 #define LSMINI_GPIO_HDD_POWER0  1
 202 #define LSMINI_GPIO_HDD_POWER1  19
 203
 204 static struct orion5x_mpp_mode lsmini_mpp_modes[] __initdata = {
 205         {  0, MPP_UNUSED }, /* LED_RESERVE1 (unused) */
 206         {  1, MPP_GPIO }, /* HDD_PWR */
 207         {  2, MPP_GPIO }, /* LED_ALARM */
 208         {  3, MPP_GPIO }, /* LED_INFO */
 209         {  4, MPP_UNUSED },
 210         {  5, MPP_UNUSED },
 211         {  6, MPP_UNUSED },
 212         {  7, MPP_UNUSED },
 213         {  8, MPP_UNUSED },
 214         {  9, MPP_GPIO }, /* LED_FUNC */
 215         { 10, MPP_UNUSED },
 216         { 11, MPP_UNUSED }, /* LED_ETH (dummy) */
 217         { 12, MPP_UNUSED },
 218         { 13, MPP_UNUSED },
 219         { 14, MPP_GPIO }, /* LED_PWR */
 220         { 15, MPP_GPIO }, /* FUNC */
 221         { 16, MPP_GPIO }, /* USB_PWR */
 222         { 17, MPP_GPIO }, /* AUTO_POWER */
 223         { 18, MPP_GPIO }, /* POWER */
 224         { 19, MPP_GPIO }, /* HDD_PWR1 */
 225         { -1 },
 226 };
 227
 228 static void __init lsmini_init(void)
 229 {
 230         /*
 231          * Setup basic Orion functions. Need to be called early.
 232          */
 233         orion5x_init();
 234
 235         orion5x_mpp_conf(lsmini_mpp_modes);
 236
 237         /*
 238          * Configure peripherals.
 239          */
 240         orion5x_ehci0_init();
 241         orion5x_ehci1_init();
 242         orion5x_eth_init(&lsmini_eth_data);
 243         orion5x_i2c_init();
 244         orion5x_sata_init(&lsmini_sata_data);
 245         orion5x_uart0_init();
 246         orion5x_xor_init();
 247
 248         orion5x_setup_dev_boot_win(LSMINI_NOR_BOOT_BASE,
 249                                    LSMINI_NOR_BOOT_SIZE);
 250         platform_device_register(&lsmini_nor_flash);
 251
 252         platform_device_register(&lsmini_button_device);
 253
 254         platform_device_register(&lsmini_leds);
 255
 256         i2c_register_board_info(0, &lsmini_i2c_rtc, 1);
 257
 258         /* enable USB power */
 259         gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
 260
 261         /* register power-off method */
 262         pm_power_off = lsmini_power_off;
 263
 264         pr_info("%s: finished\n", __func__);
 265 }
 266
 267 #ifdef CONFIG_MACH_LINKSTATION_MINI
 268 MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
 269         /* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
 270         .phys_io        = ORION5X_REGS_PHYS_BASE,
 271         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 272         .boot_params    = 0x00000100,
 273         .init_machine   = lsmini_init,
 274         .map_io         = orion5x_map_io,
 275         .init_irq       = orion5x_init_irq,
 276         .timer          = &orion5x_timer,
 277         .fixup          = tag_fixup_mem32,
 278 MACHINE_END
 279 #endif